| 4. POPULATION BY RELIGION, 2001 AND 2011 CENSUSES | ||||
| 2001 Census | 2011 Census | |||
| Number | % | Number | % | |
| Republic of Croatia | 4.437.460 | 100,00 | 4.284.889 | 100,00 |
| Catholics | 3.903.551 | 87,97 | 3.697.143 | 86,28 |
| Orthodox | 195.969 | 4,42 | 190.143 | 4,44 |
| Protestants | 11.824 | 0,27 | 14.653 | 0,34 |
| Other Christians | 10.569 | 0,24 | 12.961 | 0,30 |
| Muslims | 56.777 | 1,28 | 62.977 | 1,47 |
| Jews | 495 | 0,01 | 536 | 0,01 |
| Oriental religions | 969 | 0,02 | 2.550 | 0,06 |
| Other religions, movements and life philosophies | 524 | 0,01 | 2.555 | 0,06 |
| Agnostics and sceptics | 1.547 | 0,03 | 32.518 | 0,76 |
| Not religious and atheists | 98.376 | 2,22 | 163.375 | 3,81 |
| Not declared | 130.985 | 2,95 | 93.018 | 2,17 |
| Unknown | 25.874 | 0,58 | 12.460 | 0,29 |